CABPOPHTTA. 



159 



bud out, and finally produce many eight-spored sacs on 

 their extremities; after a time the sacs are dissolved, and 

 the spore-fruit, now of a sulphur-yellow color, contains a 

 multitude of loose spores. 



Fig. 83. — Eurotium. A^ a. portion of the plant, with erect hypha, c. bearing at 

 its top a radiating cluster of sterigmata, st, from which the conidia have fallen; 

 as. young carpogone — below it a younger branch is beginning to coil spirally to 

 form another carpogone. B, the carpogone, as, and the antherid. p. C, the 

 same beginning to be surrounded by the enveloping branches which grow out 

 from its base. D, spore-fruit. Highly magnified. 



Practical Studies. — (a) Collect in the autumn a quantity of leaves 

 of the lilac which are covered with a whitish mould-like growth, 

 the Lilac-blight (Microsphsera friesii). Scrape off a hit of this Blight, 

 after moistening with a drop of alcohol; mount carefully, adding a 



